US6434358B1 - Oil secreting supply roller for an electrophotographic printer, including a method for applying a toner repelling substance to a fuser roller - Google Patents
Oil secreting supply roller for an electrophotographic printer, including a method for applying a toner repelling substance to a fuser roller Download PDFInfo
- Publication number
- US6434358B1 US6434358B1 US09/735,855 US73585500A US6434358B1 US 6434358 B1 US6434358 B1 US 6434358B1 US 73585500 A US73585500 A US 73585500A US 6434358 B1 US6434358 B1 US 6434358B1
- Authority
- US
- United States
- Prior art keywords
- roller
- fuser
- oil
- oil supply
- toner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000126 substance Substances 0.000 title claims abstract description 56
- 230000001846 repelling effect Effects 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000003248 secreting effect Effects 0.000 title description 8
- 229920002545 silicone oil Polymers 0.000 claims abstract description 24
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- 229920002379 silicone rubber Polymers 0.000 claims description 26
- 239000004945 silicone rubber Substances 0.000 claims description 26
- 230000028327 secretion Effects 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 3
- 229920001971 elastomer Polymers 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract 1
- 238000013508 migration Methods 0.000 abstract 1
- 230000005012 migration Effects 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000010063 rubber manufacturing process Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229920002449 FKM Polymers 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- -1 polytetrafluorethylene Polymers 0.000 description 1
- 229920000260 silastic Polymers 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
- G03G15/2017—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means
- G03G15/2025—Structural details of the fixing unit in general, e.g. cooling means, heat shielding means with special means for lubricating and/or cleaning the fixing unit, e.g. applying offset preventing fluid
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/20—Details of the fixing device or porcess
- G03G2215/2093—Release agent handling devices
Definitions
- Electrophotographic processes such as that used in printers, copiers, and fax machines produce hardcopy images on a print media such as paper through precise deposition of toner onto the print media.
- the toner is applied by the print mechanism to correspond to the desired text or image to be produced.
- Such toner is then permanently affixed to the media by a fuser, which heats the toner such that it melts and bonds to the print media.
- the fuser comprises at least two contiguous rollers, a hot roller and a backup roller.
- the media is transported to the print mechanism and passes between the contiguous rollers, such that fuser hot roller heats the media to melt and fuse the toner to the print media.
- toner melts, it becomes tacky and has a tendency to adhere to the fuser hot roller. Over time, toner accumulates on the hot roller, and eventually on the backup roller, causing degradation of the image quality on the print media.
- a lubricating substance to the fuser hot roller serves to weaken the bond between the toner and the hot roller and prevents accumulation of toner on the hot roller, and also serves to smooth the toner surface.
- Silicone oil is one such lubricating substance which has effective toner repelling properties.
- such oil can be applied to the backup roller, and then transferred to the fuser hot roller due to rotational engagement of the backup roller with the fuser hot roller.
- FIG. 1 One prior art oil delivery system is shown in FIG. 1, in which an oil web 10 extends from a web supply roll 14 to a web take-up roll 12 .
- the web is generally a fabric material of one or more layers and is held in contact with the fuser hot roller 18 by one or more biasing rollers 16 .
- Oil delivery is controlled by indexing the web 10 by controlled rotation of the take-up and supply rolls 12 and 14 . While effective at delivering oil, such an oil delivery system generally increases the number of moving parts, affecting cost and maintenance.
- FIG. 2 Another prior art oil delivery system is shown in FIG. 2, which utilizes a wicking element 20 biased against the fuser hot roller 18 by a spring loaded or other biasing member 22 mounted on a support 23 , or otherwise disposed in contact with the fuser hot roller.
- the wicking element is a piece of fibrous textile or mesh material adapted to transport silicone oil through capillary action. As the wicking element extends from an oil reservoir 24 to the hot roller 18 , the wicking element is therefore adapted to deliver silicone oil along the length of the fuser hot roller 18 .
- Such a system tends to be prone to oil dumps due to the capillary characteristic of the wicking element material, and further requires a separate oil reservoir 24 to be maintained.
- FIGS. 3 a and 3 b show prior art oil delivery rolls. Such rolls utilize an outer metering layer wrapped around an oil containing center.
- FIG. 3 a shows a web wrapped roll 34 , which includes an oil saturated wrapping 30 such as a temperature resistant paper or non-woven material around a support shaft 36 .
- An outer metering layer 38 such as felt or a metering membrane, is wrapped around the oil saturated wrapping to limit the flow of oil brought to the surface by the capillary action of the oil saturated wrapping.
- FIG. 3 b shows a tank-type oil roll which uses a hollow support shaft 44 as an oil reservoir.
- the hollow support shaft has oil delivery holes 46 along the length for delivering oil to a metering material 42 , such as rolled fabric, which is wrapped around the hollow support shaft 44 .
- a metering material 42 such as rolled fabric
- Each of these oil delivery rolls shown in FIGS. 3 a and 3 b rotationally engage the fuser hot roller for the purpose of applying oil.
- Such an oil delivery roll requires periodic replenishment of the oil reservoir and can also result in oil dumps if the oil delivery roll remains in contact with the fuser hot roller during idle periods.
- An oil impregnated rubber roller for an electrophotographic printer fuser allows silicone oil to secrete from the rubber roller onto the fuser hot roller to prevent toner from adhering to the fuser hot roller.
- Such an oil impregnated roller provides oil delivery to the fuser hot roller without the need for a separate oil reservoir and delivery system.
- the oil impregnated roller decreases the potential for large surges of oil onto the print media, while continuing to provide a controlled delivery of oil to the fuser hot roller.
- Such an oil impregnated roller is comprised of a cylindrically shaped silicone rubber roller disposed around a rotatable shaft.
- the silicone oil is impregnated into the silicone rubber roller during the rubber manufacturing process, rather than saturated or injected by a secondary process following manufacturing.
- the secretion rate of the oil from the oil impregnated roller to the fuser hot roller is affected primarily by the viscosity of the silicone oil and the rotational speed of the rollers.
- the viscosity of the oil tends to decrease with increased temperature.
- the silicone oil impregnated in the roller is selected to be of a viscosity which secretes at a desired flow rate at the operating temperature of the fuser hot roller. A greater flow rate can be achieved by decreasing the viscosity of the silicone oil selected.
- the fuser hot roller generally cools during idle periods, the oil viscosity increases and therefore flows less freely; thus the oil impregnated roller can remain in contact with the fuser hot roller for extended idle periods without increasing the potential for oil dumps.
- An oil secreting roller comprised of a plurality of layers, one of which is comprised of a homogenous, oil secreting substance.
- a metering membrane layer such as expanded polytetrafluorethylene (PTFE), felt, or paper, is wrapped around the cylindrical roller element to further limit and control the amount of oil exuded.
- the oil secreting cylindrical roller element may be disposed around an inner silicone rubber layer or other inner buffer layer to minimize swelling, since the oil secreting portion may have a tendency to swell, depending on the type of oil used, the type of rubber used, or the operating temperature.
- a barrier layer such as VITON® may be provided between the inner buffer layer and the oil secreting cylindrical roller element to minimize diffusion of the silicone oil into the inner buffer layer.
- a cleaning element such as a cleaner roller, wiper, web, or scraper can be provided in contact with the hot roller or a roller engaged directly or indirectly therewith to remove excess toner, dust or other particles which may accumulate on the roller surfaces.
- FIG. 1 shows a prior art oil web system
- FIG. 2 shows a prior art oil wicking system
- FIG. 3 a a shows a web wrap type of oil delivery roll
- FIG. 3 b shows an oil reservoir type of oil delivery roll
- FIG. 4 a shows an oil delivery system as defined by the present invention
- FIG. 4 b shows an oil delivery system as defined by the present invention utilizing an indirect donor roll
- FIG. 5 shows a cross section of a prior art oil impregnated roller
- FIG. 6 shows an oil impregnated roller having a metering layer as defined by the present invention
- FIG. 7 shows an oil impregnated roller having an inner buffer layer as defined by the present invention
- FIG. 8 shows an oil impregnated roller having an inner buffer layer and a metering layer as defined by the present invention
- FIG. 9 shows an oil impregnated roller having an inner buffer layer and a barrier layer as defined by the present invention.
- FIG. 10 shows an oil impregnated roller having an inner buffer layer, barrier layer, and metering layer.
- An oil impregnated roller as defined by the present invention may be employed in direct rotational engagement with the fuser hot roller, or in indirect engagement through a donor roller.
- FIGS. 4 a and 4 b oil delivery systems utilizing direct and indirect oil impregnated roller engagement, respectively, as defined herein are shown.
- the oil impregnated roller 50 is rotatably mounted on a resilient mounting 52 in rotational engagement with the fuser hot roller 54 .
- Resilient mounting 52 is biased to keep the oil impregnated roller 50 against the fuser hot roller 54 and to maintain rotational engagement therewith.
- Fuser hot roller 54 is rotated to advance print media 56 , disposed between the fuser hot roller and a backup roller 58 , in the direction shown by media path 60 via frictional contact with the fuser hot roller.
- print media could be advanced by alternate drive mechanisms, such as conveyor belts or trays. Toner deposited on a media surface 62 of the print media 56 is then melted and fused by the fuser hot roller 54 as the print media 56 passes in contact therewith.
- a cleaner roller 68 in rotational communication with fuser hot roller 54 , may be used to eliminate accumulation of unfused toner and dust on the fuser hot roller. As small amounts of unfused toner and extraneous matter such as dust may adhere to the fuser hot roller, cleaner roller 68 absorbs such matter. Cleaner roller 68 is typically comprised of a fibrous or mesh textile substance. As silicone oil serves to weaken the bond between toner and the fuser hot roller, this excess toner is easily absorbed by the cleaner roller 68 .
- cleaner roller 68 may also be implemented as a wiper, scraper, or web, as long as a fibrous or abrasive surface adapted to remove extraneous matter is brought in contact with the fuser hot roller. Further, such contact may be direct or indirect, as the cleaner roller may be located in contact with other rollers, as long as such a cleaner roller is in direct or indirect rotational communication with the fuser hot roller.
- FIG. 4 b shows a similar roller orientation using a donor roll.
- the donor roll 61 is disposed between and in rotational engagement with both the oil impregnated roller 50 and the fuser hot roller 54 . Oil is therefore secreted from the oil roll 50 onto the donor roll 61 , and subsequently applied to the fuser hot roller 54 .
- Such a donor roll can serve to allow optimal oil roll placement for maintenance and service access, and also to isolate the oil roll from the heat of the fuser to further prevent oil dumps.
- Other embodiments employ direct and indirect application of oil to the fuser hot roller 54 through various roller arrangements.
- Various support structures and motors for the rollers are known to those skilled in the art. Such alternate applications are effective at providing a controlled quantity of oil to the fuser hot roller as long as the oil impregnated roller is in rotational engagement with the fuser hot roller.
- FIG. 5 shows a cross section of the oil impregnated roller as defined by the prior art.
- a cylindrical formation of oil impregnated silicone rubber 72 has a center bore 76 therethrough.
- a rotatable support shaft 74 is disposed through the center bore 76 to drive the oil impregnated roller.
- the oil impregnated silicone rubber 72 may be secured to the rotatable support shaft 74 by any suitable means, such as by frictional fitting or adhesive.
- Such an oil impregnated silicone rubber 72 is formed by impregnating the oil during the silicone rubber manufacturing process.
- a preferred oil impregnated silicone rubber 72 is made by Dow Corning under the trademark Silastic S50508-Oil Exuding Grade.
- the secretion rate of the oil is affected primarily by the viscosity of the oil. As the viscosity of the oil varies with temperature, such oil is selected for the viscosity at the normal operating temperature of the fuser hot roller. Secretion flow rates for several oil impregnated silicone rubber materials under different operating conditions are shown in Table 1.
- Quantity Impregnated refers to the percentage of the roller which is impregnated oil.
- Average Per Page refers to the quantity of oil deposited onto a sheet during normal operation at a normal fuser operating temperature. After 30 Min. Idle refers to the first page following such an idle cycle. After Idle Overnight refers to the first page following an overnight idle period, typically expected to be about 15 hours.
- the quantity of oil secreted should be less than 1.0 mg per page to reduce the potential for duplex defects from excessive oil in the electrophotographic process. Further, the print media begins to have a moist appearance when the oil quantity approaches the range of 5.0 mg-10.0 mg per page, depending on the toner used.
- One advantage provided by the fact that viscosity, rather than quantity, tends to drive the secretion rate is that since the fuser cools during idle periods, the viscosity of the oil increases during these periods, resulting in a reduced secretion rate. Even after an overnight idle period, the quantity of oil is small enough to allow the oil impregnated roller to remain in rotational engagement without compromising print quality through oil dumps. Accordingly, no retraction mechanism to disengage the oil impregnated roller is required.
- the secretion rate of the oil may be non-uniform about the circumference of an individual roller, and may also vary from roller to roller. As such, it is preferred to employ an element which minimizes these characteristics.
- a cylindrical roller element 71 comprised of an oil secreting substance such as silicone rubber is disposed around a support shaft 73 .
- a metering layer 75 such as expanded PTFE, felt, or other suitable metering membrane, is wrapped around cylindrical roller element 71 to control the secretion rate of the silicone oil and improve the uniformity of silicone oil coverage.
- Expanded PTFE may be fabricated in a controlled fashion such that the resulting porosity is tightly controlled. Consequently, oil secreted from a silicone rubber layer is exuded through a metering layer in an even, controlled fashion.
- FIG. 7 shows another embodiment of the oil impregnated roller in which an inner buffer layer 77 is disposed around the support shaft 73 .
- the cylindrical roller element 71 is then formed by providing a coating of oil impregnated silicone rubber around the inner buffer layer 77 .
- the inner buffer layer does not absorb the oil from the oil impregnated roller. In this manner, the volume of the oil impregnated roller which comprises the oil secreting cylindrical roller element is thereby reduced. Swelling and velocity variations due to the consumption of oil are thus minimized.
- FIG. 8 introduces another embodiment of the oil impregnated roller comprising both the metering layer 75 and the inner buffer layer 77 .
- the inner 15 buffer layer 77 may be comprised of a substance similar to that of the cylindrical roller element 71 , diffusion of silicone oil from the oil impregnated cylindrical roller element 71 into the inner buffer layer 77 may occur.
- a barrier layer 78 may therefore be employed between the inner buffer layer 77 and the cylindrical roller element 71 , as shown in FIGS. 9 and 10, to prevent inward diffusion and further minimize swelling of the oil impregnated roller.
- Such a barrier layer may be employed alone (FIG. 9 ), or with the metering layer 75 (FIG. 10 ).
- a suitable material for such a barrier layer 78 includes TEFLON® and any other non-porous, thin material.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
TABLE 1 | ||||
% Quantity | Average Per | After 30 | After Idle | |
Sample | Impregnated | Page | Min. Idle | Overnight |
1 | 2% | 0.1475 mg | 0.05 mg | 0.1 mg |
2 | 18% | 0.182 mg | 0.76 mg | 0.55 mg |
3 | 2% | 0.168 mg | 0.55 mg | 0.69 mg |
Claims (47)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/735,855 US6434358B1 (en) | 2000-12-13 | 2000-12-13 | Oil secreting supply roller for an electrophotographic printer, including a method for applying a toner repelling substance to a fuser roller |
KR10-2003-7007968A KR20040021581A (en) | 2000-12-13 | 2001-12-12 | Oil secreting supply roller for an electrophotographic printer |
EP01270425A EP1350142A4 (en) | 2000-12-13 | 2001-12-12 | Oil secreting supply roller for an electrophotographic printer |
CNA018222188A CN1620636A (en) | 2000-12-13 | 2001-12-12 | Oil secreting supply roller for an electrophotographic printer |
PCT/US2001/047801 WO2002047912A2 (en) | 2000-12-13 | 2001-12-12 | Oil secreting supply roller for an electrophotographic printer |
AU2002220272A AU2002220272A1 (en) | 2000-12-13 | 2001-12-12 | Oil secreting supply roller for an electrophotographic printer |
JP2002549469A JP2004515814A (en) | 2000-12-13 | 2001-12-12 | Oil secretion supply roller for electrophotographic printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/735,855 US6434358B1 (en) | 2000-12-13 | 2000-12-13 | Oil secreting supply roller for an electrophotographic printer, including a method for applying a toner repelling substance to a fuser roller |
Publications (2)
Publication Number | Publication Date |
---|---|
US6434358B1 true US6434358B1 (en) | 2002-08-13 |
US20020110393A1 US20020110393A1 (en) | 2002-08-15 |
Family
ID=24957482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/735,855 Expired - Lifetime US6434358B1 (en) | 2000-12-13 | 2000-12-13 | Oil secreting supply roller for an electrophotographic printer, including a method for applying a toner repelling substance to a fuser roller |
Country Status (7)
Country | Link |
---|---|
US (1) | US6434358B1 (en) |
EP (1) | EP1350142A4 (en) |
JP (1) | JP2004515814A (en) |
KR (1) | KR20040021581A (en) |
CN (1) | CN1620636A (en) |
AU (1) | AU2002220272A1 (en) |
WO (1) | WO2002047912A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060029441A1 (en) * | 2004-08-09 | 2006-02-09 | Atsushi Ide | Fixing apparatus and image forming apparatus having the same |
US10787011B2 (en) | 2015-07-20 | 2020-09-29 | Hewlett-Packard Development Company, L.P. | Wiping print media |
CN113608921A (en) * | 2021-06-25 | 2021-11-05 | 天津津航计算技术研究所 | Key consistent response control method for anti-blocking dual-computer hot backup system |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4804105B2 (en) * | 2005-10-25 | 2011-11-02 | 株式会社リコー | Fixing device and image forming apparatus |
CN109263259B (en) * | 2018-09-21 | 2020-05-15 | 安徽原上草节能环保科技有限公司 | Silicone oil treatment method, device and solid ink printing device |
CN110066506B (en) * | 2019-04-02 | 2021-09-28 | 百恩实业(深圳)有限公司 | Light slow-release oil supply roller and preparation method thereof |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3964431A (en) * | 1973-06-01 | 1976-06-22 | Ricoh Co., Ltd. | Device for supplying an offset preventing liquid to a fixing roller |
JPS6244754A (en) * | 1985-08-23 | 1987-02-26 | Minolta Camera Co Ltd | Silicone oil treatment of fixing roller |
US5030976A (en) | 1989-11-09 | 1991-07-09 | Salmon Peter C | Electrodielectric printing apparatus and process |
JPH04139477A (en) * | 1990-10-01 | 1992-05-13 | Japan Gore Tex Inc | Oil applying member for copying machine |
US5274428A (en) | 1992-06-24 | 1993-12-28 | Xerox Corporation | Single pass direct transfer color printer |
US5482552A (en) * | 1993-03-19 | 1996-01-09 | Japan Gore-Tex, Inc. | Liquid metering and coating device |
US5788770A (en) | 1995-06-07 | 1998-08-04 | W. L. Gore & Associates, Inc. | Oil delivery sheet material for use in various printer devices |
US5853832A (en) * | 1995-12-28 | 1998-12-29 | Nitto Kogyo Co., Ltd. | Oil application roll for electrophotograph fixation and method of fabricating the same |
US6195526B1 (en) * | 1998-12-18 | 2001-02-27 | Samsung Electronics Co., Ltd. | Fixation roller for liquid electrophotographic printer and transferring apparatus adopting the same |
US6212355B1 (en) * | 1999-08-23 | 2001-04-03 | Tex Tech Industries | Oil metering supply apparatus and method for applying an evenly distributed release oil onto a fuser roller |
US6249657B1 (en) * | 1999-02-16 | 2001-06-19 | Sharp Kabushiki Kaisha | One-way heat fixing device for fixing developers on a recording medium and a method therefor |
US6266509B1 (en) * | 1998-07-15 | 2001-07-24 | Canon Kabushiki Kaisha | Fixing apparatus |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4430406A (en) * | 1981-10-22 | 1984-02-07 | Eastman Kodak Company | Fuser member |
JP2673721B2 (en) * | 1989-05-24 | 1997-11-05 | キヤノン株式会社 | Fixing device |
GB9207571D0 (en) * | 1992-04-07 | 1992-05-20 | Gore W L & Ass Uk | Oil reservoir |
JPH0736298A (en) * | 1993-07-19 | 1995-02-07 | Fuji Xerox Co Ltd | Fixing device |
US5974293A (en) * | 1994-12-15 | 1999-10-26 | Xerox Corporation | Donor brush with oil barrier layer |
US6336972B1 (en) * | 1998-07-03 | 2002-01-08 | Nichias Corporation | Oil coating apparatus |
-
2000
- 2000-12-13 US US09/735,855 patent/US6434358B1/en not_active Expired - Lifetime
-
2001
- 2001-12-12 KR KR10-2003-7007968A patent/KR20040021581A/en not_active Application Discontinuation
- 2001-12-12 WO PCT/US2001/047801 patent/WO2002047912A2/en not_active Application Discontinuation
- 2001-12-12 CN CNA018222188A patent/CN1620636A/en active Pending
- 2001-12-12 JP JP2002549469A patent/JP2004515814A/en active Pending
- 2001-12-12 AU AU2002220272A patent/AU2002220272A1/en not_active Abandoned
- 2001-12-12 EP EP01270425A patent/EP1350142A4/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3964431A (en) * | 1973-06-01 | 1976-06-22 | Ricoh Co., Ltd. | Device for supplying an offset preventing liquid to a fixing roller |
JPS6244754A (en) * | 1985-08-23 | 1987-02-26 | Minolta Camera Co Ltd | Silicone oil treatment of fixing roller |
US5030976A (en) | 1989-11-09 | 1991-07-09 | Salmon Peter C | Electrodielectric printing apparatus and process |
JPH04139477A (en) * | 1990-10-01 | 1992-05-13 | Japan Gore Tex Inc | Oil applying member for copying machine |
US5274428A (en) | 1992-06-24 | 1993-12-28 | Xerox Corporation | Single pass direct transfer color printer |
US5482552A (en) * | 1993-03-19 | 1996-01-09 | Japan Gore-Tex, Inc. | Liquid metering and coating device |
US5788770A (en) | 1995-06-07 | 1998-08-04 | W. L. Gore & Associates, Inc. | Oil delivery sheet material for use in various printer devices |
US5853832A (en) * | 1995-12-28 | 1998-12-29 | Nitto Kogyo Co., Ltd. | Oil application roll for electrophotograph fixation and method of fabricating the same |
US6266509B1 (en) * | 1998-07-15 | 2001-07-24 | Canon Kabushiki Kaisha | Fixing apparatus |
US6195526B1 (en) * | 1998-12-18 | 2001-02-27 | Samsung Electronics Co., Ltd. | Fixation roller for liquid electrophotographic printer and transferring apparatus adopting the same |
US6249657B1 (en) * | 1999-02-16 | 2001-06-19 | Sharp Kabushiki Kaisha | One-way heat fixing device for fixing developers on a recording medium and a method therefor |
US6212355B1 (en) * | 1999-08-23 | 2001-04-03 | Tex Tech Industries | Oil metering supply apparatus and method for applying an evenly distributed release oil onto a fuser roller |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060029441A1 (en) * | 2004-08-09 | 2006-02-09 | Atsushi Ide | Fixing apparatus and image forming apparatus having the same |
US7483663B2 (en) * | 2004-08-09 | 2009-01-27 | Sharp Kabushiki Kaisha | Fixing apparatus having a cleaning member and image forming apparatus having the same |
US10787011B2 (en) | 2015-07-20 | 2020-09-29 | Hewlett-Packard Development Company, L.P. | Wiping print media |
CN113608921A (en) * | 2021-06-25 | 2021-11-05 | 天津津航计算技术研究所 | Key consistent response control method for anti-blocking dual-computer hot backup system |
CN113608921B (en) * | 2021-06-25 | 2024-01-16 | 天津津航计算技术研究所 | Key consistent response control method for anti-blocking dual-machine hot backup system |
Also Published As
Publication number | Publication date |
---|---|
AU2002220272A1 (en) | 2002-06-24 |
EP1350142A4 (en) | 2006-11-02 |
WO2002047912A3 (en) | 2003-02-27 |
JP2004515814A (en) | 2004-05-27 |
KR20040021581A (en) | 2004-03-10 |
EP1350142A2 (en) | 2003-10-08 |
US20020110393A1 (en) | 2002-08-15 |
WO2002047912A2 (en) | 2002-06-20 |
CN1620636A (en) | 2005-05-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6434357B1 (en) | Oil exuding roller for an electrophotographic printer, including a method for its fabrication, and its function encompassed by a method for applying a toner repelling substance to a fuser roller | |
US4751548A (en) | Apparatus including a conductive wick for applying liquid release agent material to a heated fuser roll | |
US20070182800A1 (en) | Release agent applicator for imaging members in solid ink jet imaging systems | |
US6434358B1 (en) | Oil secreting supply roller for an electrophotographic printer, including a method for applying a toner repelling substance to a fuser roller | |
EP2056172B1 (en) | Apparatus and method for release agent application and cleaning of a fuser surface using a release agent impregnated web | |
US5534062A (en) | Oil reservoir | |
KR20000011473A (en) | Oil Coating Apparatus | |
US6377774B1 (en) | System for applying release fluid on a fuser roll of a printer | |
US8498559B2 (en) | Oil pressurized foam roll | |
US7046948B1 (en) | Brush streak eraser | |
US4408559A (en) | Image fixing device | |
WO1993008512A1 (en) | Oil transfer component | |
JPH09179433A (en) | Releasing agent managing system for fixing unit with releasing agent roll | |
US6875164B1 (en) | High capacity leak resistant release agent delivery system for use in printer devices | |
WO1999030211A1 (en) | Improved fluid delivery device | |
JP2889965B2 (en) | Oil application / cleaning member for fixing device, method of manufacturing the same, and fixing device for electrophotography | |
GB2265857A (en) | Oil reservoir | |
JPS6339912B2 (en) | ||
JP2001318551A (en) | Releasing agent applying roller and fixing device provided with the same | |
JPH09292791A (en) | Fixing device for image forming device | |
JP2001042683A (en) | Fixing device and image forming device | |
JPS5842464B2 (en) | Fusing device | |
JPH08335004A (en) | Fixing apparatus | |
JPS63127275A (en) | Fixing device | |
JP2006301394A (en) | Fixing device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LEXMARK INTERNATIONAL, INC., KENTUCKY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MAUL, MICHAEL DAVID;RUSH, EDWARD ALAN;REEL/FRAME:011502/0397 Effective date: 20001213 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: CHINA CITIC BANK CORPORATION LIMITED, GUANGZHOU BR Free format text: PATENT SECURITY AGREEMENT;ASSIGNOR:LEXMARK INTERNATIONAL, INC.;REEL/FRAME:046989/0396 Effective date: 20180402 |
|
AS | Assignment |
Owner name: CHINA CITIC BANK CORPORATION LIMITED, GUANGZHOU BR Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT U.S. PATENT NUMBER PREVIOUSLY RECORDED AT REEL: 046989 FRAME: 0396. ASSIGNOR(S) HEREBY CONFIRMS THE PATENT SECURITY AGREEMENT;ASSIGNOR:LEXMARK INTERNATIONAL, INC.;REEL/FRAME:047760/0795 Effective date: 20180402 |
|
AS | Assignment |
Owner name: LEXMARK INTERNATIONAL, INC., KENTUCKY Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:CHINA CITIC BANK CORPORATION LIMITED, GUANGZHOU BRANCH, AS COLLATERAL AGENT;REEL/FRAME:066345/0026 Effective date: 20220713 |